"Hide zero warnings projects" can not be enabled from GUI

Details

Description

The android lint project can show the projects with lint issues in a Dashboard view ("Android Lint issues per project" - Portlet). This works fine so far. However, all the projects are shown thene, even the ones with zero warnings.

In theory there is a checkbox where you can enable "Hide zero warnings projects". However, enabling this and Applying it to the view has no effect, and after reload, the checkbox is disabled again. This works fine for the "Compiler warnings per project" portlet.

However, changing the value in the config file manually (jenkins/config.xml):